EP3733348A1 - Procédé pour lisser la surface d'une pièce - Google Patents

Procédé pour lisser la surface d'une pièce Download PDF

Info

Publication number
EP3733348A1
EP3733348A1 EP20156017.4A EP20156017A EP3733348A1 EP 3733348 A1 EP3733348 A1 EP 3733348A1 EP 20156017 A EP20156017 A EP 20156017A EP 3733348 A1 EP3733348 A1 EP 3733348A1
Authority
EP
European Patent Office
Prior art keywords
component
liquid
solid mixture
guide
guide surface
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20156017.4A
Other languages
German (de)
English (en)
Other versions
EP3733348B1 (fr
Inventor
Martin Fessler-Knobel
Jörg Windprechtinger
Georg Astl
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
MTU Aero Engines AG
Original Assignee
MTU Aero Engines AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by MTU Aero Engines AG filed Critical MTU Aero Engines AG
Publication of EP3733348A1 publication Critical patent/EP3733348A1/fr
Application granted granted Critical
Publication of EP3733348B1 publication Critical patent/EP3733348B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/10—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work
    • B24B31/116—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor involving other means for tumbling of work using plastically deformable grinding compound, moved relatively to the workpiece under the influence of pressure
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B19/00—Single-purpose machines or devices for particular grinding operations not covered by any other main group
    • B24B19/14—Single-purpose machines or devices for particular grinding operations not covered by any other main group for grinding turbine blades, propeller blades or the like
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/003—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor whereby the workpieces are mounted on a holder and are immersed in the abrasive material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B31/00—Machines or devices designed for polishing or abrading surfaces on work by means of tumbling apparatus or other apparatus in which the work and/or the abrasive material is loose; Accessories therefor
    • B24B31/12—Accessories; Protective equipment or safety devices; Installations for exhaustion of dust or for sound absorption specially adapted for machines covered by group B24B31/00
    • B24B31/14—Abrading-bodies specially designed for tumbling apparatus, e.g. abrading-balls
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B24—GRINDING; POLISHING
    • B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
    • B24B37/00—Lapping machines or devices; Accessories
    • B24B37/02—Lapping machines or devices; Accessories designed for working surfaces of revolution
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D5/00—Blades; Blade-carrying members; Heating, heat-insulating, cooling or antivibration means on the blades or the members
    • F01D5/12—Blades
    • F01D5/14—Form or construction
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
    • F01D—NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAM TURBINES
    • F01D9/00—Stators
    • F01D9/02—Nozzles; Nozzle boxes; Stator blades; Guide conduits, e.g. individual nozzles
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05D—INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
    • F05D2230/00—Manufacture
    • F05D2230/10—Manufacture by removing material

Definitions

  • the present invention relates to a method for smoothing a component surface.
  • a turbomachine can functionally be divided into a compressor, a combustion chamber and a turbine, whereby in the case of an aircraft engine, the air sucked in is compressed in the compressor and burned in the downstream combustion chamber with added kerosene. The resulting hot gas, a mixture of combustion gas and air, flows through the downstream turbine and is expanded in the process.
  • the turbine and the compressor each have a multi-stage structure, with each stage comprising a guide and a rotor blade ring.
  • Each blade ring is made up of a plurality of blades which follow one another around the circumference, around which the compressor or hot gas flows depending on the application. Smoothing these component surfaces can be aerodynamically advantageous, for example.
  • the present invention is based on the technical problem of specifying an advantageous method for smoothing a surface of a component.
  • the component is placed in a container (bath) with a liquid-solid mixture, and a relative movement is generated between the mixture and the component.
  • the mixture flows along the surface to be smoothed, with which a combined chemical-mechanical material removal can be achieved, the component is chemically-mechanically polished.
  • a guide surface is provided in the bath or container with the mixture, along which the mixture flows. The guide surface guides the flow and, in particular, pushes the solid body component towards the component surface, so it superimposes a directional component on the component surface.
  • the guide surface With the guide surface, the mixture, and thus in particular the solid part, is guided onto the surface, so that there is sufficient pressure for material removal.
  • the solid content can, for. B. particulate, in particular spherical, the balls then roll on the component surface with a sufficiently high pressure due to the guidance to achieve the desired polishing effect.
  • the proportion of solids in the mixture can in particular be so high that a coherent agglomerate of particles or spheres is present between the guide surface and the surface of the component; A force chain is thus formed between the guide surface and the component so that the particles / balls are reliably pressed against the component surface.
  • the guide surface can, for example, produce or help set a pressure that is more uniform over the component surface, which can improve the homogeneity of the smoothing result.
  • a and “an” are to be read as indefinite articles and therefore always also as “at least one” or “at least one” without expressly specifying the contrary.
  • several components can also be arranged and smoothed at the same time. If the component is a blade, this can be part of a single blade or a multiple segment; in principle, a complete blade ring can also be machined (blisk, blade integrated disk ) .
  • the component can preferably be a blade of a turbomachine, which is arranged in its gas channel and flowed around it.
  • an application in the turbine area is also conceivable, i.e. the blade can be arranged in the hot gas duct and hot gas can flow around it.
  • An application in the compressor area is preferred, that is to say that compressor gas flows around the blade in the compressor gas duct.
  • the advantages of the method according to the invention can in particular come into play, namely the homogeneously smoothed component surface can help prevent a flow stall, for example.
  • the guide surface is a side surface of a guide body around which the bath flows.
  • the latter means that the liquid-solid mixture not only flows along the guide surface, but also along a side surface of the guide body opposite the guide surface.
  • the guide body is preferably made of metal; it can in particular be a guide plate (simple and flexible manufacture).
  • the component surface has a curved profile when viewed in a sectional plane and the guide surface is curved in a complementary manner when viewed in the same sectional plane. If the surface is convex, for example, then the guide surface extends concave, and in the case of a concave component surface it extends convex.
  • Said cutting plane is preferably parallel to the direction of flow, in the case of the airfoil it can be, for example, a tangential cutting plane (in this the airfoil profile is considered, the cutting plane lies tangentially on a revolution around the longitudinal or rotational axis of the turbo machine).
  • the guide surface is arranged in relation to the component surface in such a way that a distance between them decreases in the direction of flow.
  • the distance is considered in the section (cf. the previous paragraph with regard to the section plane) taken perpendicular to the streamlines between the surface and the guide surface.
  • a distance which decreases continuously (without jumps / steps) in the flow direction can be preferred, which can offer advantages with regard to the desired homogenization.
  • a further guide surface is provided in the bath, which can also be formed by a guide body, in particular a guide plate.
  • the component is or will be arranged between the guide surfaces, based on a direction perpendicular to the direction of flow. The flow is then guided from one guide surface onto a surface area of the component and from the other guide surface onto a surface area opposite thereto.
  • one guide surface can be assigned to the suction side surface and the other to the pressure side surface.
  • the guide surfaces between which the component is placed are arranged relative to one another in such a way that a distance between them decreases in the direction of flow. Specifically, this guide surface distance is taken in a section perpendicular to the streamlines between the guide surfaces, cf. also the comments above. If, for example, an airfoil is smoothed and, for this purpose, the flow is flowing against the leading edge, the distance between the guide surfaces arranged on both sides thereof decreases from the leading edge to the trailing edge.
  • the distance between the guide surface and the respective surface area preferably also decreases, see above.
  • a blade may be, for example, at the component in general.
  • a panel so act a fairing.
  • Channel plates ( panels ) can also be smoothed and thus optimized with regard to the flow around the gas channel.
  • the component is preferably an airfoil.
  • a nozzle could generally also be provided in the bath through which the mixture is pumped and thus accelerated onto the component. In this case, the latter would be considered in a stationary coordinate system, that is to say rest in the processing machine and thus, for example, also in the assembly or production hall.
  • the relative movement is achieved in that the component is moved through the liquid-solid mixture.
  • the component is then moved, it is pulled or pushed through the mixture.
  • the guide surfaces or guide bodies / guide plates are moved through the bath together with the component. They can, for example, be arranged on a holder in which the component is placed and which is then moved together with the component through the mixture.
  • the liquid-solid mixture can be provided on a water basis, for example.
  • it can, for example, contain an acid, e.g. B. hydrogen peroxide.
  • the liquid component can contain, for example, silicates.
  • the solid component is preferably provided in the form of particles or spheres, in particular in the form of glass or metal balls. These can, for example, have a diameter in the micro- or millimeter range, approximately from at least 200 microns and z. B. at most 2 mm, so for example. Of around 0.5 mm.
  • the invention also relates to a device for smoothing a component surface.
  • the device has a container into which the liquid-solid mixture can be added or in which it is kept.
  • the component can be placed in the container for smoothing.
  • the device has a movement device by means of which the relative movement between the mixture and the component can be generated, preferably by moving the component.
  • Part of the device can therefore in particular be a holder into which the component can be placed and then pulled through the container.
  • a guide surface in the container in particular a guide body or guide plate.
  • Fig. 1 shows a device 1 for smoothing a component 2, specifically a surface 2.1 of the component 2.
  • the component 2 is a blade or a blade of an aircraft engine, cf. also Fig. 3 for illustration.
  • the component 2 is or is placed in a container 3 which is filled with a liquid-solid mixture 4.
  • the component 2 is then moved in the liquid-solid mixture 4, so a relative movement 5 is generated between the liquid-solid mixture 4 and the component 2.
  • the mixture 4 is composed of a liquid component 7 (in the present case, for example, water, H 2 O 2 , silicates) and spherical solids 8 with a diameter of, for example. B. 0.5 mm built.
  • the mixture 4 flows along the surface 2.1 due to the relative movement 5, the balls roll with a certain pressure on the surface 2.1.
  • a guide surface 20 is arranged in the mixture 4, which imposes a directional component 21 on the flow 6 towards the surface 2.1 of the component 2.
  • Fig. 2a -c illustrates (specifically in Fig. 2a ), each in one section (based on Fig. 1 the cutting plane is perpendicular to the drawing surface and horizontal). In these sections, the profile shape of the component 2, so z. B. the blade to recognize.
  • a further guide surface 200 is provided in each case, which also imposes a directional component 210 on the flow 6 towards the component surface 2.1.
  • a guide surface 20, 200 is thus assigned to both a suction side surface 2.1.1 and a pressure side surface 2.1.2 of the airfoil.
  • Each of the guide surfaces 20, 200 is in each case formed by a guide body 22, 220, namely a guide plate around which the mixture 5 flows.
  • the guide surfaces 20, 200 are arranged relative to the component 2 or its surface 2.1 in such a way that a respective distance 25, 250 from the surface 2.1 decreases in the flow direction 26. Furthermore, a guide surface distance 27 between the guide surfaces 20, 200 also decreases in the flow direction 26.
  • Fig. 3 shows a turbomachine 30, specifically a turbofan engine, in an axial section (the section plane includes the longitudinal axis 31).
  • the turbo machine 30 is functionally divided into a compressor 32, a combustion chamber 33 and a turbine 34, with air sucked in in the compressor 32 being compressed. In the combustion chamber 33, it is burned with kerosene mixed in, and the hot gas produced is expanded in the turbine 34.
  • Both the compressor 32 and the turbine 34 are each constructed in multiple stages.
  • the component 2 (the blade blade smoothed according to the description above) can be used both in the turbine 34 and in the compressor 32; the latter is preferred (because of the high aerodynamic requirements there).

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP20156017.4A 2019-02-08 2020-02-07 Procédé et dispositif pour lisser la surface d'une pièce Active EP3733348B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102019201656.1A DE102019201656A1 (de) 2019-02-08 2019-02-08 Verfahren zum glätten einer oberfläche eines bauteils

Publications (2)

Publication Number Publication Date
EP3733348A1 true EP3733348A1 (fr) 2020-11-04
EP3733348B1 EP3733348B1 (fr) 2024-06-26

Family

ID=69526148

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20156017.4A Active EP3733348B1 (fr) 2019-02-08 2020-02-07 Procédé et dispositif pour lisser la surface d'une pièce

Country Status (3)

Country Link
US (1) US11612977B2 (fr)
EP (1) EP3733348B1 (fr)
DE (1) DE102019201656A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114453990B (zh) * 2022-04-12 2022-08-19 徐州中顺尚奕机械制造有限公司 混合清洁型热膨胀式金属表面全方位无损除锈加工装置
DE102022209051A1 (de) 2022-08-31 2024-02-29 Zf Friedrichshafen Ag Verfahren und Steuergerät zum Betreiben eines Antriebsstrangs eines Fahrzeugs

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5341602A (en) * 1993-04-14 1994-08-30 Williams International Corporation Apparatus for improved slurry polishing
US20050255797A1 (en) * 2004-05-12 2005-11-17 Shuji Kawasaki Barrel polishing device
DE102008017475A1 (de) * 2008-04-03 2009-10-08 Siegrid Peggy Seltmann Verfahren zur Oberflächenbehandlung von metallischen Werkstücken

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5216098A (en) * 1975-07-28 1977-02-07 Sumitomo Electric Ind Ltd Scraping device of scal on wire
FR2713974B1 (fr) 1993-12-22 1996-01-19 Snecma Dispositif de grenaillage de surfaces non accessibles par une canalisation droite.
EP0922530B1 (fr) * 1997-12-10 2005-03-23 Shuji Kawasaki Dispositif de tribofinition
ES2178495T3 (es) * 1998-11-14 2002-12-16 Mtu Aero Engines Gmbh Sistema de mecanizacion de precision de piezas componentes simetricas rotativas.
JP4059421B2 (ja) 2000-10-31 2008-03-12 新東工業株式会社 ショットピ−ニング装置
US6464570B1 (en) 2001-07-17 2002-10-15 General Electric Company Omnidirectional shot nozzle
JP3997315B2 (ja) * 2002-06-14 2007-10-24 株式会社Ｉｈｉ ブレード表面研摩装置のブレード固定治具
JP5066430B2 (ja) 2007-11-20 2012-11-07 日本発條株式会社 ショットピーニング用反射部材およびそれを用いたショットピーニング方法
US20110244770A1 (en) * 2010-04-05 2011-10-06 Boutaghou Llc Abrasive slurry formulations containing nano and micro spheres additives or self-assembled monolayers
US9421661B2 (en) * 2013-04-30 2016-08-23 United Technologies Corporation Airfoil edge form transfer grinding tool
SI24359A (sl) * 2013-05-14 2014-11-28 Univerza V Ljubljani Priprave in postopki poliranja z abrazivnim tokom
EP2848367B1 (fr) 2013-09-11 2016-03-23 Rolls-Royce Deutschland Ltd & Co KG Appareil et procédé pour le grenaillage de surfaces de montage de lame sur le disque d'un agencement de rotor
JP6264347B2 (ja) 2015-09-10 2018-01-24 ダイキン工業株式会社 空調室内機
GB201805763D0 (en) * 2018-04-06 2018-05-23 Rolls Royce Plc A method and apparatus for finishing an internal channel of a component

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5341602A (en) * 1993-04-14 1994-08-30 Williams International Corporation Apparatus for improved slurry polishing
US20050255797A1 (en) * 2004-05-12 2005-11-17 Shuji Kawasaki Barrel polishing device
DE102008017475A1 (de) * 2008-04-03 2009-10-08 Siegrid Peggy Seltmann Verfahren zur Oberflächenbehandlung von metallischen Werkstücken

Also Published As

Publication number Publication date
DE102019201656A1 (de) 2020-08-13
US11612977B2 (en) 2023-03-28
EP3733348B1 (fr) 2024-06-26
US20200254581A1 (en) 2020-08-13

Similar Documents

Publication Publication Date Title
DE69718514T2 (de) Vorrichtung zum gasdynamischen beschichten
EP2378072B1 (fr) Canal en dérivation d'un turboréacteur
EP1034029B1 (fr) Procede et dispositif pour accroitre la pression ou l'enthalpie d'un fluide s'ecoulant a une vitesse supersonique
DE102013202616B4 (de) Vorrichtung zum Reinigen der Core Engine eines Strahltriebwerks
DE102018119091A1 (de) Verfahren, Vorrichtung und Anordnung zum Reinigen der Core Engine eines Strahltriebwerks
EP3733348B1 (fr) Procédé et dispositif pour lisser la surface d'une pièce
EP1624192A1 (fr) Aube de rouet pour compresseur axial
CH701997A2 (de) Turbomaschine mit einer geformten Wabendichtung.
DE102015218264A1 (de) Vorrichtung und Verfahren zum Einspannen eines Schaufelblatts einer Schaufel
DE102012215413B4 (de) Baugruppe einer Axialturbomaschine
EP2099585A1 (fr) Dispositif et procédé pour grenailler la surface d'une pièce de turbine à gaz
EP2805059A1 (fr) Procédé et dispositif pour stabiliser un flux de compresseur
DE102006058678A1 (de) Verfahren und Vorrichtung zum Oberflächenstrahlen eines Teilelements eines Bauteils einer Gasturbine
EP1617972B1 (fr) Procede pour arrondir des aretes de pieces
DE102005061401A1 (de) Verfahren zur Mikrostrukturierung einer Oberfläche eines Werkstücks
DE10348805B4 (de) Verfahren zur Erzeugung eines Wasserabrasivstrahls
EP2808124A1 (fr) Procédé et dispositif destinés au traitement d'aubes de turbine
DE102005054866A1 (de) Verfahren zum Herstellen von metallischen Bauteilen, insbesondere für Turbomaschinen, mit kleinen Kantenradien
DE102012219541A1 (de) Düse, Strukturelement und Verfahren zur Herstellung einer Düse
EP3235593A1 (fr) Outil de façonnage pour métal ou matières non métalliques
WO2016087517A1 (fr) Dispositif de traitement à protection contre les émissions
WO2019192635A1 (fr) Procédé de fabrication d'une aube d'une turbomachine
EP3486494B1 (fr) Boîtier de ventilateur radial et ventilateur radial
WO2024165356A1 (fr) Dispositif d'enlèvement électrochimique de matériau
DE102015220671B4 (de) Aerodynamischer Körper, seine Verwendung und Verfahren zum Absaugen eines Teils eines Fluids

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION HAS BEEN PUBLISHED

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: REQUEST FOR EXAMINATION WAS MADE

17P Request for examination filed

Effective date: 20210416

RBV Designated contracting states (corrected)

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: GRANT OF PATENT IS INTENDED

INTG Intention to grant announced

Effective date: 20240117

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE PATENT HAS BEEN GRANTED

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

REG Reference to a national code

Ref country code: GB

Ref legal event code: FG4D

Free format text: NOT ENGLISH

REG Reference to a national code

Ref country code: CH

Ref legal event code: EP

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: BG

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240626

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FI

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240626

Ref country code: HR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240626

REG Reference to a national code

Ref country code: LT

Ref legal event code: MG9D

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GR

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240927

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LV

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240626

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: RS

Free format text: LAPSE BECAUSE OF FAILURE TO SUBMIT A TRANSLATION OF THE DESCRIPTION OR TO PAY THE FEE WITHIN THE PRESCRIBED TIME-LIMIT

Effective date: 20240926